Renamed namespaces of url lib and removed namespace aliases.

net/base/filename_util_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/base/filename_util.h"
 
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 493 matching lines @@
       "http://www.google.com/test.html",
       "",
       "",
       "",
       "",
       L"",
       L"test.html"
     },
     { // Now that we use src/url's ExtractFileName, this case falls back to
       // the hostname. If this behavior is not desirable, we'd better change
-      // ExtractFileName (in url_parse).
+      // ExtractFileName (in url_parse.cc).
       __LINE__,
       "http://www.google.com/path/",
       "",
       "",
       "",
       "",
       L"",
       L"www.google.com"
     },
     {
@@ skipping 1118 matching lines @@
     RunGenerateFileNameTestCase(&generation_tests[i]);
 
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(generation_tests); ++i) {
     GenerateFilenameCase test_case = generation_tests[i];
     test_case.referrer_charset = "GBK";
     RunGenerateFileNameTestCase(&test_case);
   }
 }
 
 }  // namespace net